摘要
介绍一种WorldFIP扫描变量表的构建方法 .提出扩展单调速率算法 ,对具有实时通信要求的周期性变量进行优先级分配 ;应用扩展单调速率算法 ,给出构建扫描变量表的方法 ,以保证周期性变量的实时通信 ;通过对周期性变量最大等待时间的分析 ,给出判断扫描变量表有效性判据 .
This paper presents a method to build WorldFIP scan variable table in detail. Firstly, the arithmetic of Extend Rate Monotonic is provided to assign the priority level for all real time communicating periodic variables. Secondly, the approach to build a scan variable table based on the Extend Rate Monotonic arithmetic is proposed, in order to guarantee the real time communication of the periodic variables on bus. Finally, the validity criterion of the scan variable table built is given by analyzing the maximum waiting time.
出处
《沈阳建筑工程学院学报》
2001年第3期235-238,共4页
Journal of Shenyang Archit Civil Eng Univ: Nat Sci
基金
国家自然科学基金项目 ( 60 0 84 0 0 1 )
